1、 - AECMA PREN2070-03 84 = L0123LL 0007597 Approved by COMITI! DE NORMALISATION of A.ECNA. 1984-01-25 . The equivalent versions in French and German languages can be supplied by B.N.A.E., 8, rue Moreau-Vauthier 92100 BOULOGNE-B1LLAN.COURT - FRANCE. A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.CM.A. NORM
2、prEN2070-3 ; 1 Edition 1 July 1984 ENGLISH VERSION Aluminium and aluminium alloy wrought products - Technical specification - Part 3 - Bar and section Aerospace series Demi-produits corroys en aluminium et alliages daluminium - Spcification technique - Partie 3 - Barres et profils Srie arospatiale L
3、uft- und Raumfahrt Halbzeug aus Aluminium und Aluminium- Knetlegierungen - Technische Lieferbedingungen - Teil 3 - Stangen und Pressprofile This industrial standard or the aerospace sector has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospat
4、ial). It is published on yell0 w paper in three equivalent versions (English, French, German). It will be submitted to CEN (European Committee for Standardization) as a draft European Standard. AECMA PREN2070-03 84 LOL23Ll O007598 T prEN2070-3 Page 2 CONTENTS 1 2 3 4 5 6 7 a 9 10 11 12 13 SCOPE AND
5、FIELD OF APPLICATION References Man u fa c t u re Batch size Di mens i ons Internal defects External defects Tensile test Batch uniformity Back end defect and peripheral coarse grain zone Stress corrosion testing Speci-al tests Flarki ng Annex A AECMA PREN2070-03 BY L0123LL 0007599 1 prEN2070-3 Page
6、 3 1 Scope and field of application The present standard defines the particular requirements for bar md section in aluminium and aluminium alloys produced by extrusion, drawing or rol 1 irig. This standard shall be used in conjunction with EN2070-1. 2 References EN2002-1, EN2002-7 , EN2002-16, Test
7、methods for metallic materials - Part 1 - Tensile tesfs at room temperature 4) Test qythods for metallic materials - Part 7 - Hardness test Test methods for metallic materials - Part 16 - Penetrant flaw detection Test methods for aluminium and a1uminium alloys - Part 1 - Electrical conductivity test
8、ing Test methods for aluminium and aluminium alloys - Part 2 - Ultrasonic testing of plates, forgings and extrusions Test methods for aluminiu and aluminium alloys - Part 4 - Stress corrosion testing Aluminium and aluminium alloy wrought products - Technica? specification - Part 1 - General requirem
9、ents . 1 1 EN2004-1, EN2004-2, Ti EN2004-4 , EN2070-1 , i) In preparation AECMA PREN2070-03 84 = LOL23LL 0007b00 4 prEN2070-3 Page 4 3 Manufacture Un1 ess otherwi se specified , the method of manufacture to be employed shall be at the discretion of the manufacturer, however, the following requiremen
10、ts must be observed : - Die quenching is permissible only when agreed in writing between the manufacturer and purchaser. - The use of bridge die process is only permissible when agreed in writing between the manufacturer and purchaser. 4 Batch size See table 1. TABLE 1 Temper *) O, F, H . T . I Mass
11、 1) - 650 mm2. The “capability clause“ may be applied to his requirement. AECMA PREN2070-03 4 W 1012311 0007b02 8 - b-.- - - I . _. -* prEN2070-3 Page 6 O L 8 Tensile test 8.1 Location of test samples 8.1.1 Bar 8.1. I. 1 Longitudinal test TABLE 3 Dimensions in millimetres 8.1.1.2 Transverse test Whe
12、n this test is specified in the material standard the test specimen shall be selected as in the Annex A, figures 6 to 9. 8.1.2 Section 8.1.2.1 Longitudinal test For sections whose minor dimension in the thickest part are : - - 40 mm, see Annex A, figure 11. 8.1.2.2 Transverse test When this test is
13、specified in the material standard the location of the test specimen shall be defined by the purchaser. AECMA PREN2070-03 4 1012311 0007603 T W .“ . prEN2070-3 Page 7 8.2 Test method and definition of test piece Tensile tests shall conform to the requirements of EN2002-1. For products with a thickne
14、ss 25 mm, with rectangular cross section having a width - 25 mm. - Section : If 1 heir shape and dimensions make such measurement possible. The number and position of measurements and sampling are given in table 4. AECMA PREN2070-03 84 m I1012311 0007604 II = .+.i prEN2070-3 Page 8 TABLE 4 Product j
15、 Bar with circular cross section Bar with square or rectangular cross section Section . Amount of tested products per batch each product Number and position of. measurements per product 1 per bar end on cross section 1 per bar end on cross section 1 every Metre along the bar 1 per section end on cro
16、ss sectior (or on flat surface at the end of the section) each product and 25% of products each product and 1 every metrealong the section 25% of products 9.2 Hardness testing Each product shall be hardness tested provided their shape and dimensions make such measurement possible. Testing shall be i
17、n accordance with EN2002-7. The number and location of measurements per product shall be : - length - 4,5 m : both ends. The va.lues obtained shall conform with any values specified in the material standard. The product of lowest hardness shall be selected for the tensile test. 10 Back end deffect a
18、nd peripheral coarse grain zone Unless otherwise agreed, the back end of every extruded letgth shall be macrographically examined with respect to back end defects and, if required by the material standard, peripheral coarse grain. The “capability clause“ may be applied to these requirements with the
19、 agreement of the purchaser. The maximum thickness of peripheral coarse grain zone for bar and regular solid section shall be in accordance with table 5, level A or B as specified by the material standard. AECMA PREN2070-03 84 m LOL23LL 0007605 3 m prEN2070-3 Page 9 TABLE 5 Dimensions in millimetres
20、 . .I Maximum thickness of the peripheral coarse qrain zne .D or a Level A I Level B I - I (D or a) S 1,5 - 14-0 a/4 i) Dl2 or a/2 i) 1,5 al al u) m .-4 & W .al v) r. & al al v) - I - u) u) al e c oi 3 O L al o m y. L 3 Co - c O .rl U U 0) (o U al U 3 L +J X W a LI: al v) al UI I I i L al Q w - pu O
21、 w C o c O u) m L U 4 3 i4 I o i.-# e -so Q mu Lm mc o .4 LE om mx =al CI c c Cl 3 in LW m OLA2 1T: clin W al U Lu)- o (ce- 3 zim m U CTL E o u) (o L a II I - I -i E c O .rl +J 0 al u) u c m L m m U CI L .A 3 T c L U o 3 U O L a - s L U x w I- e al r 3 L O y. .*. irl 3 0- W L I m O 4 m 4 r. T ri, O
22、1- x L m E E 3 cn I h W 4 .A u) al m e L W X I- W :I ok I . - AECMA PREN2070-03 BY 1012311 0007608 9 prEN2070-3 Page 12 ANNEX A Dimensions in millimetres FIGURE 1 FIGURE 2 I -+- I 1 I I b40 FIGURE 4 b40 - - - AECMA PREN2070-03 84 1012311 0007b09 O -I A prEN2070-3 Page 73 Dimensions in millimetres FIGURE 6 FIGURE 7 FIGURE 8 I - -+u I FIGURE 9 2204 FIGURE 10 O d A *2oJ I. - FIGURE 11
